School-slate



` (No Mod'ei.)

uF. W. MALLETT.

SCHOOL SLATE. A No. 268,252. Patented Nov.f28, 1882.

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UNITED *STATES PATENT OFFICE.

FRANCIS W. MALLETT, OF SLATINGTON, PENNSYLVANIA.

SCHOOL-SLATE.

SPECIFICATION forming part of Letters Patent No. 268,252, dated November 28', 1882,

I pplication tiled March 4, 1882. (No model.)

tion with accompanying drawings and the letters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this speciiication, and represent, in

Figure 1, a face view of aportion of the slate and frame complete; Fig. 2, a transverse secf tion through one of the tacks; Fig. 3, a transverse section of the band as prepared for attachment to the frame; Fig. 4, a perspective view of the side bands.

This invention relates to an improvement in school-slates, the object being to strengthen the frame, as well as to cushion it, so that it will be noiseless upon the desk.

'lhewood frames of school-slates are secured at the angles by various devices, as by pins, dowels, and various interlocking devices; but in the hard use to which a school-slate is exposed these soon loosen so that the'franie separates at the angles, and the slate becomes useless. Y

The object of my invention is to strengthen the frame, and with such strengthening secure cushions upon the edge of the frame; and it consists in applying a metal band or hoop around the edge of the slate, the said band inclosed by a cushion and secured by tacksin the band, as more fully hereinafter described.

A B represent one side and end ot' a common round-cornered slate'frame; C, the slate.

To strengthen the frame, I take a strip, a, of sheet-iron or-other suitable metal, about the width of the thickness of the frame, and per. forate this at numerous points alongits length, and through each of the perforations introduce a tack, b, as seen in Fig. 3, the head resting upon the upper or outside edge of the band. Onto this band ofmetal I place a strip, d, ot' pasteboard or othersuitable iillin g nterial. I thetake a stripot' fabric, leather, or other suitable material, and place ongdge, e, upon the under sideoft'heA meta'lffband a and over the tacks, as seen in Fig. 3, so that the tacks serve to hold that edge to the band, then draw it over one edge of the band, over the filling d, around the other edge of the band and to its under side, where it holds the first edge, and there secure the two edges together by paste 0r otherwise, which completes the edge-band or cushions for the slate. This band is made in strips ot' suicientlength to extend entirely around the edge ot' the slate-frame, and may be made in very long lengt-hs to be cut into shorter lengths as required for the frames. I apply it to the frame, beginning at one end ot' the baud and driving the .first tack into the edge of the frame, and so ou around the slate until the two ends are brought together, as at f, Fig. l. This-metal band strengthens the slate-frame, so that it istimpossible for it to separate at the angles, the cushion preventing the noise upon the desk. The band and filling may be in relation to the thickness ofthe frame so that the covering will project each side and form a surface-cushion for the frame; bntI prefer to combine with this band and cushioned surface cushions made as seen in Fig. 4. These consist ot' two cords, 7b, of flexible or elastic material, connected by a web, i. At each side, on the edge of the frame, recesses m are cut, in which the-cords lie, as seen in Fig. 2. These are placed in position before the band is apfor instance, the two edges may come together on a central line and there be stitched, or they may be pasted to the under sideoi` the metal band; yet I prefer the first-described method IOO band a, having securing-points b attached thereto, the said band inclosed b v a. covering, combined with the side cushions, h h. arranged in recesses ou the frame, and secured in place by said band, substantially as described.

FRANCIS W. MALLETT.

Witnesses:

DAVID MCKENNA, F. J. STETTLER. 

